Claude,
The compiler doesn't know the values of any variables or fields. It has to 'assume' that what you wrote has the correct types. It's only at run-time that actual data (fields or variables) is assigned to these values.

Barbara

>No record number is given with the error. What puzzles me is why does the form compile without showing this error. The only time the error appears is when I open the form.
>
>Claude